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ISEF Prep:I need as people to answer these ?'s Please

Posted: Thu Dec 04, 2008 6:23 pm
by yinyinwong
Hello I am called Yin Yin Wong. I am currently a senior in Northgate High School. This is an engineering ISEF Project I am doing for my physics class taught my Mr. Retle. After going to the conference and some thought I have come up with these questions. Please answer as many of these as possible. I would love more than one reply.

1. What designs for windmills are most efficient?
2. What are some materials that are light and durable that are used to make windmills?
3. Is it efficient to make the actual spinning part of the windmills light?
4. Does the rotor or whatever converts rotational energy to electrical energy stop immediately when the wind stops or does momentum keep it going? If the momentum keeps it going after rotor stops, does it still produce energy?
5. Does the rotor inside the windmill effect efficiency?
6. Just some general info on airborne wind turbines. They sound like a really cool idea.

Re: ISEF Prep:I need as people to answer these ?'s Please

Posted: Thu Dec 04, 2008 10:38 pm
by barretttomlinson
Hi,

You may want to review this related thread from earlier this year:

viewtopic.php?f=29&t=4303

Best wishes for a great project!

Barrett Tomlinson

Re: ISEF Prep:I need as people to answer these ?'s Please

Posted: Tue Dec 16, 2008 9:20 pm
by yinyinwong
Is there a way or place i can look to, to build a rig to test for windmill efficiency.